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-rw-r--r--include/linux/blkdev.h15
1 files changed, 12 insertions, 3 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index a92d9e4ea96e..f3491d225268 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -87,7 +87,9 @@ enum {
87 */ 87 */
88enum rq_flag_bits { 88enum rq_flag_bits {
89 __REQ_RW, /* not set, read. set, write */ 89 __REQ_RW, /* not set, read. set, write */
90 __REQ_FAILFAST, /* no low level driver retries */ 90 __REQ_FAILFAST_DEV, /* no driver retries of device errors */
91 __REQ_FAILFAST_TRANSPORT, /* no driver retries of transport errors */
92 __REQ_FAILFAST_DRIVER, /* no driver retries of driver errors */
91 __REQ_DISCARD, /* request to discard sectors */ 93 __REQ_DISCARD, /* request to discard sectors */
92 __REQ_SORTED, /* elevator knows about this request */ 94 __REQ_SORTED, /* elevator knows about this request */
93 __REQ_SOFTBARRIER, /* may not be passed by ioscheduler */ 95 __REQ_SOFTBARRIER, /* may not be passed by ioscheduler */
@@ -111,8 +113,10 @@ enum rq_flag_bits {
111}; 113};
112 114
113#define REQ_RW (1 << __REQ_RW) 115#define REQ_RW (1 << __REQ_RW)
116#define REQ_FAILFAST_DEV (1 << __REQ_FAILFAST_DEV)
117#define REQ_FAILFAST_TRANSPORT (1 << __REQ_FAILFAST_TRANSPORT)
118#define REQ_FAILFAST_DRIVER (1 << __REQ_FAILFAST_DRIVER)
114#define REQ_DISCARD (1 << __REQ_DISCARD) 119#define REQ_DISCARD (1 << __REQ_DISCARD)
115#define REQ_FAILFAST (1 << __REQ_FAILFAST)
116#define REQ_SORTED (1 << __REQ_SORTED) 120#define REQ_SORTED (1 << __REQ_SORTED)
117#define REQ_SOFTBARRIER (1 << __REQ_SOFTBARRIER) 121#define REQ_SOFTBARRIER (1 << __REQ_SOFTBARRIER)
118#define REQ_HARDBARRIER (1 << __REQ_HARDBARRIER) 122#define REQ_HARDBARRIER (1 << __REQ_HARDBARRIER)
@@ -560,7 +564,12 @@ enum {
560#define blk_special_request(rq) ((rq)->cmd_type == REQ_TYPE_SPECIAL) 564#define blk_special_request(rq) ((rq)->cmd_type == REQ_TYPE_SPECIAL)
561#define blk_sense_request(rq) ((rq)->cmd_type == REQ_TYPE_SENSE) 565#define blk_sense_request(rq) ((rq)->cmd_type == REQ_TYPE_SENSE)
562 566
563#define blk_noretry_request(rq) ((rq)->cmd_flags & REQ_FAILFAST) 567#define blk_failfast_dev(rq) ((rq)->cmd_flags & REQ_FAILFAST_DEV)
568#define blk_failfast_transport(rq) ((rq)->cmd_flags & REQ_FAILFAST_TRANSPORT)
569#define blk_failfast_driver(rq) ((rq)->cmd_flags & REQ_FAILFAST_DRIVER)
570#define blk_noretry_request(rq) (blk_failfast_dev(rq) || \
571 blk_failfast_transport(rq) || \
572 blk_failfast_driver(rq))
564#define blk_rq_started(rq) ((rq)->cmd_flags & REQ_STARTED) 573#define blk_rq_started(rq) ((rq)->cmd_flags & REQ_STARTED)
565 574
566#define blk_account_rq(rq) (blk_rq_started(rq) && (blk_fs_request(rq) || blk_discard_rq(rq))) 575#define blk_account_rq(rq) (blk_rq_started(rq) && (blk_fs_request(rq) || blk_discard_rq(rq)))